Question
Write hydrocarbon radicals that can be formed as intermediates during monochlorination of 2-methylpropane. Which of them is more stable? Give reasons.
✓
Answer
During monochlorination of 2-methylpropane, 2-methylpropane gives two types of radicals:
Radical (II) is less stable because it is $1^{\circ}$ and stabilised by one hyper conjugative structure (as it has only $1 \alpha$-hydrogen).
Radical (I) is more stable because it is $3^{\circ}$ and stabilised by nine hyper conjugative structures (as it has $9 \alpha$-hydrogens).
Hence, Radical (I)is more stable.
Radical (II) is less stable because it is $1^{\circ}$ and stabilised by one hyper conjugative structure (as it has only $1 \alpha$-hydrogen).
Radical (I) is more stable because it is $3^{\circ}$ and stabilised by nine hyper conjugative structures (as it has $9 \alpha$-hydrogens).
Hence, Radical (I)is more stable.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Why is the atomic spectrum is not continuous but linear?
$\text{Zn}\text{(s)}+\text{Cu}^{2+}\text{(aq)}\xrightarrow{ \ \ \ \ \ \ \ \ }\text{Zn}^{2+}\text{(aq)}+\text{Cu}\text{(s)}$ Is this reaction redox reaction? If yes, name the oxidising agent as well as reducing agent.
→Find the conjugate base for the species $\mathrm{H}_2 \mathrm{O}$ and $\mathrm{NH}_4{ }^{+}$.
→Heat capacity $\left(C_p\right)$ is an extensive property but specific heat (c) is an intensive property. What will be the relation between $C_p$ and $c$ for 1 mol of water?
→$\mathrm{AIF}_3$ is a high melting solid whereas $\mathrm{SiF}_4$ is a gas. Explain.
→What do you meant by spontaneity? Explain.
Explain with the help of example, the difference between bond dissociation energy and bond energy.
Name the indicator used in redox titration involving $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ as an oxidising agent.
→Ozone gas is heavier than air. Why does ozone layer not settle down near the earth?
Among the elements Li, K, Ca, S and Kr, which one is expected to have the lowest first ionisation enthalpy and which one has the highest first ionisation enthalpy?